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Quest DEH 3000
Installation, Operation and Maintenance Instructions
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1. Press the “VENT” button. The current setting will begin to flash on the display. Release the button.
2. Press the “VENT” button again to switch between “OPEN” and “CLOSED”.
3. Leave the control alone for 10 seconds and your settings will be saved.
Damper Operation and Ventilation, Programmed Ventilation
This example shows the system in program mode (denoted by the schedule 15 minutes on, 5 minutes off and the
word RUN in the lower right corner of the display).
The Quest DEH 3000 will operate fresh air ventilation according to your
ventilation program. The control needs to be programmed to turn the
ventilation function ON and OFF at the desired intervals. This is done by
programming the ventilation timer.
There are two programs available for ventilation:
1. Monday through Sunday
2. Monday through Friday & Saturday/Sunday
Each block of days has a morning schedule and a night schedule. Morning is
the first 12 hours of the day and night is the second 12 hours.
Each schedule has:
• A “START” time when the ventilation schedule begins,
• An “OPEN FOR” duration for the amount of time the damper stays open in 5 minute intervals, from 0 to 60,
• And “CLOSED FOR” duration which closes the damper for a specified time in 5 minute intervals from 0 to 60.
Setting the Ventilation Program:
1. Press the “PROGRAM ENTER” button until the following menu
appears:
2. Using the up/down “RH” buttons, highlight “PROGRAM” and select
it by pressing the “PROGRAM ENTER” button. The following menu
appears: